Flora of North America species comparison

suffrutescent basally, erect, 75–250 cm, strigose to strigillose, hairs tightly appressed.

erect, 70–250 cm, strigose.

3-foliolate;

stipules absent;

leaflet blades elliptic to elliptic-lanceolate or elliptic-oblanceolate, 40–100(–140) mm, length 3–4.5 times width, surfaces strigose abaxially, glabrous adaxially.

3-foliolate;

stipules absent;

leaflet blades linear to linear-lanceolate or elliptic-lanceolate, 50–130(–180) mm, length 7–10 times width, surfaces strigose abaxially, glabrous adaxially.

10–50-flowered, terminal, subterminal, or lateral, 10–40 cm;

bracts persistent, linear-subulate.

4–12-flowered, terminal or subterminal, 15–40 cm;

bracts persistent, linear-triangular, minute.

calyx broadly cylindrical, basally truncate and deflexed against pedicel, 4–6 mm (length less than width), lobes triangular-lanceolate, glabrous or sparsely strigillose;

corolla yellow with prominent reddish lines, each wing with a purple spot at base, 12–15 mm.

calyx broadly cylindrical, truncate basally, 4–6 mm, lobes triangular, shiny-glabrous;

corolla pale yellow with prominent reddish purple lines, 18–20 mm.

30–45 × 7–12 mm, sparsely to densely strigose to strigose-sericeous.

straight, (40–)50–70 × (10–)15–20 mm, sparsely strigose or glabrescent.

= 16.